EP 0203600 A2 19861203 - Method of and apparatus for measuring floating fine particles.
Title (en)
Method of and apparatus for measuring floating fine particles.
Title (de)
Verfahren und Vorrichtung zum Messen feiner Schwebeteilchen.
Title (fr)
Procédé et dispositif pour la mesure de particules fines en suspension.
Publication
Application
Priority
JP 11456585 A 19850528
Abstract (en)
[origin: US4848905A] A method of and apparatus for measuring the density of fine particles floating in a fluid. The method includes the steps of: applying light to a fluid contained in a tubular member having an interior surface constituted by a mirror surface; condensing and detecting rays traveling toward one axial end of the tubular member among the light reflected by fine particles in the fluid; and subjecting the detected rays or signal to a predetermined processing, thereby measuring the density of the fine particles. The apparatus employed in this method includes: a tubular member; a light source directed in a direction perpendicular to the axial direction of the tubular member; a condenser lens disposed at one axial end of the tubular member; a detector opposing the condenser lens; and a processor which processes a signal applied thereto from the detector in a predeteremined manner to obtain the density of fine particles.
IPC 1-7
IPC 8 full level
G01N 21/49 (2006.01); G01N 15/06 (2006.01); G01N 21/05 (2006.01); G01N 21/53 (2006.01); G01N 15/00 (2006.01)
CPC (source: EP KR US)
G01N 15/06 (2013.01 - KR); G01N 21/05 (2013.01 - EP US); G01N 21/53 (2013.01 - EP US); G01N 2015/0053 (2013.01 - EP US); G01N 2021/052 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
US 4848905 A 19890718; CA 1272043 A 19900731; DE 3682535 D1 19920102; EP 0203600 A2 19861203; EP 0203600 A3 19871021; EP 0203600 B1 19911121; JP H0640059 B2 19940525; JP S61271438 A 19861201; KR 860009303 A 19861222; KR 940002496 B1 19940325
DOCDB simple family (application)
US 19761588 A 19880523; CA 509506 A 19860520; DE 3682535 T 19860528; EP 86107281 A 19860528; JP 11456585 A 19850528; KR 860004004 A 19860522